main repo

node_modules/next/dist/client/components/promise-queue.js

@@ -0,0 +1,91 @@
+/*
+    This is a simple promise queue that allows you to limit the number of concurrent promises
+    that are running at any given time. It's used to limit the number of concurrent
+    prefetch requests that are being made to the server but could be used for other
+    things as well.
+*/ "use strict";
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+Object.defineProperty(exports, "PromiseQueue", {
+    enumerable: true,
+    get: function() {
+        return PromiseQueue;
+    }
+});
+const _class_private_field_loose_base = require("@swc/helpers/_/_class_private_field_loose_base");
+const _class_private_field_loose_key = require("@swc/helpers/_/_class_private_field_loose_key");
+var _maxConcurrency = /*#__PURE__*/ _class_private_field_loose_key._("_maxConcurrency"), _runningCount = /*#__PURE__*/ _class_private_field_loose_key._("_runningCount"), _queue = /*#__PURE__*/ _class_private_field_loose_key._("_queue"), _processNext = /*#__PURE__*/ _class_private_field_loose_key._("_processNext");
+class PromiseQueue {
+    enqueue(promiseFn) {
+        let taskResolve;
+        let taskReject;
+        const taskPromise = new Promise((resolve, reject)=>{
+            taskResolve = resolve;
+            taskReject = reject;
+        });
+        const task = async ()=>{
+            try {
+                _class_private_field_loose_base._(this, _runningCount)[_runningCount]++;
+                const result = await promiseFn();
+                taskResolve(result);
+            } catch (error) {
+                taskReject(error);
+            } finally{
+                _class_private_field_loose_base._(this, _runningCount)[_runningCount]--;
+                _class_private_field_loose_base._(this, _processNext)[_processNext]();
+            }
+        };
+        const enqueueResult = {
+            promiseFn: taskPromise,
+            task
+        };
+        // wonder if we should take a LIFO approach here
+        _class_private_field_loose_base._(this, _queue)[_queue].push(enqueueResult);
+        _class_private_field_loose_base._(this, _processNext)[_processNext]();
+        return taskPromise;
+    }
+    bump(promiseFn) {
+        const index = _class_private_field_loose_base._(this, _queue)[_queue].findIndex((item)=>item.promiseFn === promiseFn);
+        if (index > -1) {
+            const bumpedItem = _class_private_field_loose_base._(this, _queue)[_queue].splice(index, 1)[0];
+            _class_private_field_loose_base._(this, _queue)[_queue].unshift(bumpedItem);
+            _class_private_field_loose_base._(this, _processNext)[_processNext](true);
+        }
+    }
+    constructor(maxConcurrency = 5){
+        Object.defineProperty(this, _processNext, {
+            value: processNext
+        });
+        Object.defineProperty(this, _maxConcurrency, {
+            writable: true,
+            value: void 0
+        });
+        Object.defineProperty(this, _runningCount, {
+            writable: true,
+            value: void 0
+        });
+        Object.defineProperty(this, _queue, {
+            writable: true,
+            value: void 0
+        });
+        _class_private_field_loose_base._(this, _maxConcurrency)[_maxConcurrency] = maxConcurrency;
+        _class_private_field_loose_base._(this, _runningCount)[_runningCount] = 0;
+        _class_private_field_loose_base._(this, _queue)[_queue] = [];
+    }
+}
+function processNext(forced) {
+    if (forced === void 0) forced = false;
+    if ((_class_private_field_loose_base._(this, _runningCount)[_runningCount] < _class_private_field_loose_base._(this, _maxConcurrency)[_maxConcurrency] || forced) && _class_private_field_loose_base._(this, _queue)[_queue].length > 0) {
+        var _class_private_field_loose_base__queue_shift;
+        (_class_private_field_loose_base__queue_shift = _class_private_field_loose_base._(this, _queue)[_queue].shift()) == null ? void 0 : _class_private_field_loose_base__queue_shift.task();
+    }
+}
+
+if ((typeof exports.default === 'function' || (typeof exports.default === 'object' && exports.default !== null)) && typeof exports.default.__esModule === 'undefined') {
+  Object.defineProperty(exports.default, '__esModule', { value: true });
+  Object.assign(exports.default, exports);
+  module.exports = exports.default;
+}
+
+//# sourceMappingURL=promise-queue.js.map